/**
 * UGENE - Integrated Bioinformatics Tools.
 * Copyright (C) 2008-2020 UniPro <ugene@unipro.ru>
 * http://ugene.net
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */

#ifndef _DOCK_MANAGER_IMPL_H_
#define _DOCK_MANAGER_IMPL_H_

#include <QIcon>

#include <U2Gui/MainWindow.h>

class QLabel;

namespace U2 {

class MainWindowImpl;

//used to save/restore geometry of the dock
class DockWrapWidget : public QWidget {
public:
    DockWrapWidget(QWidget *w);
    ~DockWrapWidget();

    virtual QSize sizeHint() const {
        return hint.isNull() ? w->sizeHint() : hint;
    }
    QWidget *w;
    QSize hint;
};

class DockData {
public:
    DockData() {
        area = MWDockArea_Left;
        label = NULL;
        dock = NULL;
        wrapWidget = NULL;
        action = NULL;
    }
    MWDockArea area;
    QLabel *label;
    QDockWidget *dock;
    DockWrapWidget *wrapWidget;
    QIcon dockIcon;
    QAction *action;
};

class MWDockManagerImpl : public MWDockManager {
    Q_OBJECT
public:
    MWDockManagerImpl(MainWindowImpl *_mw);
    ~MWDockManagerImpl();

    virtual QAction *registerDock(MWDockArea area, QWidget *w, const QKeySequence &ks = QKeySequence());

    virtual QWidget *findWidget(const QString &widgetObjName);

    virtual QWidget *getActiveWidget(MWDockArea a);

    virtual QWidget *activateDock(const QString &widgetObjName);

    virtual QWidget *toggleDock(const QString &widgetObjName);

    virtual void dontActivateNextTime(MWDockArea a);

protected:
    bool eventFilter(QObject *obj, QEvent *event);

private slots:
    void sl_dockVisibilityChanged(bool);
    void sl_widgetDestroyed();
    void sl_toggleDock();
    void sl_toggleDocks();

private:
    QToolBar *getDockBar(MWDockArea a) const;
    DockData *findDockByLabel(QLabel *l) const;
    DockData *findDockByName(const QString &objName) const;
    DockData *findDockByDockWidget(QDockWidget *d) const;
    void toggleDock(DockData *d);
    void closeDock(DockData *d);
    void openDock(DockData *d);
    void destroyDockData(DockData *d);

    void readLastActiveDocksState();
    void saveLastActiveDocksState();
    void saveDockGeometry(DockData *dd);
    void restoreDockGeometry(DockData *dd);

    void updateTB(MWDockArea a);

    DockData *getActiveDock(MWDockArea area) const;

    MainWindowImpl *mwImpl;
    QMainWindow *mw;
    DockData *activeDocks[MWDockArea_MaxDocks];
    DockData *toggleDockState[MWDockArea_MaxDocks];

    QList<DockData *> docks;

    QToolBar *dockLeft;
    QToolBar *dockRight;
    QToolBar *dockBottom;
    QAction *statusBarAction;

    // This variable is required in order to avoid unnessesary closing of dock widgets.
    // It is controlled with the eventFilter function.
    bool mainWindowIsHidden;

    QString lastActiveDocksState[MWDockArea_MaxDocks];
};

}    // namespace U2

#endif
